my brother has qualified Wbjee with 26000... something rank. what coolleges he can get?

Many private colleges are there under WBJEE that you can get. Private colleges also provide quality education and placement. Getting government college would be tough.

So based on your rank and considering you as a general category candidate, you can get Appiled Electronics and Instrumentation Engineering in RCC Institute of Information Technology. You can get Electrical, Civil, Mechanical in Netaji Subhas Engineering College , Electrical Engineering in Thomas engineering college, Electronics in B.P. Poddar Institute of Engineering and Management, IT in MCKV,  Electronics, Electrical Engineering in Techno India Newtown, Chemical, Instrumentation and Mechanical in Haldia Institute Of Technology etc. But keep in mind that these are based on last year's data and this year the cutoffs can change. To get the complete list of colleges that you can get use this link http://www.careers360.com/wbjee-college-predictor